1NH3+CuO—Cu+N2+H2O2FeSO4+KMnO4+H2SO4—Fe2(SO4)3+K2SO4+MnSO4+H2O3K2Cr2O7+H2C2O4+H2SO4—K2SO4+Cr2(SO4)3+CO2+H2O4P4+CuSO4+H2O—Cu3P+H3PO4+H2SO45I－+IO3－+H+—I2+H2O6NO2+NaOH—NaNO3+NaNO2+H2O7(NH4)2Cr2O7

Question

1 NH3+ CuO— Cu+ N2 + H2O
2 FeSO4+ KMnO4+ H2SO4— Fe2(SO4)3 + K2SO4+ MnSO4 + H2O
3 K2Cr2O7+ H2C2O4+ H2SO4 — K2SO4+ Cr2(SO4)3+ CO2+ H2O
4 P4 + CuSO4+ H2O— Cu3P+ H3PO4+ H2SO4
5 I－+ IO3－+ H+— I2+ H2O
6 NO2+ NaOH— NaNO3+ NaNO2+ H2O
7 (NH4)2Cr2O7— Cr2O3+ N2 + H2O
8 As2S3+ HNO3+ H2O— H2AsO4+ H2SO4+ NO
9 H2O2+ KMnO4+ H2SO4— MnSO4+ K2SO4+ O2+ H2O
10 MnBr+ PbO2+ HNO3— Pb(NO3)2+ Br2+ HMnO4+ H2O
11 NH4NO3 == HNO3+ N2+ H2O
12 KClO3+ HCl=== KCl+ Cl2↑+ H2O
13 CaC2O4+ KMnO4+ H2SO4— K2SO4+ CaSO4+ MnSO4+ H2O
14 NH4C1O4 ==== N2 + O2 + HC1 + H2O
15 KI + KIO3 + H2S —— 12 + K2SO4 + H2O
16 A13+ + CO32- + H2O—— A1(OH)3↓+ CO2↑
17 MnO4- + H2S + H+—— Mn2+ + S↓+ H2O
18 KMnO4+ H2O2+ H2SO4= K2SO4+ H2O+ O2↑+ MnSO4
19 C2H4+ KMnO4+ H2O—— C2H6O2 + MnO2+ KOH
20 H2C2O4+ KMnO4+ H2SO4—— CO2+ K2SO4+ MnSO4+ H2O
21 P+ CuSO4+ H2O—— Cu3P+ H3PO4+ H2SO4
22 H2PO2-+ Ag++ H2O—— H3PO4+ Ag↓+ H2↑
23 CrI3+ Cl2+ KOH=== K2CrO4+ KIO4+ KCl+ H2O
24 P4+ NaOH+ H2O—— NaH2PO4+ PH3
25 Ag3AsO4+ Zn+ H2SO4—— Ag+ AsH3+ ZnSO4+ H2O
26 Fe3C+ HNO3—— Fe(NO3)3+ NO2+ CO2+ H2O
27 (NH4)2PtCl6 Pt＋ NH4Cl＋ N2↑＋ HCl
28 Cr2O ＋ I－＋ H＋—— Cr3＋＋ I2＋ H2O
29 NO ＋ CH3OH—— N2＋ CO2＋ H2O＋ OH－

Answer 1

1 2NH3 + 3CuO= 3 Cu+ N2 + 3H2O
2 10FeSO4+ 2KMnO4+ 8H2SO4= 5Fe2(SO4)3 + K2SO4+ 2MnSO4 + 8H2O
3 K2Cr2O7+ 3H2C2O4+ 4H2SO4 = K2SO4+ Cr2(SO4)3+ 6CO2+ 7H2O
4 11P4 + 60CuSO4+ 96H2O=20Cu3P+ 24H3PO4+ 60H2SO4
5 5I－+ IO3－+ 6H+ = 3I2+ 3H2O
6 2NO2+ 2NaOH= NaNO3+ NaNO2+ H2O
7 3 (NH4)2Cr2O7=3 Cr2O3+ 3N2 + 12H2O